
AOC U2790VQ
Score: 84/100
Dell S3225QS
Score: 84/100Rankings

The AOC U2790VQ is a 27-inch 4K IPS monitor that delivers sharp visuals, accurate colors and a frameless design ideal for productivity and media consumption. It offers solid connectivity and low power draw but lacks adaptive sync and built-in speakers, making it less suitable for gaming.

The Dell S3225QS is a 31.5-inch 4K VA monitor that pairs a high 120 Hz refresh rate with strong color coverage and HDR10 support. It offers a fully adjustable stand and built-in speakers, making it suitable for mixed productivity and casual gaming, though the VA panel's response and lack of USB-C may limit some users.
| Attribute | ![]() | ![]() |
|---|---|---|
27 inches | 31.5 inchesbest | |
60 Hz | 120 Hzbest | |
| ↓ lower better | 5 ms | 4 msbest |
350 nitsbest | 300 nits | |
1,000 | 3,000best | |
108 %best | 99 % | |
2best | 2best | |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(7) | ||
Screen Size (inches) | 27 inches | 31.5 inches |
Panel Type | IPS | VA |
Refresh Rate (Hz) | 60 Hz | 120 Hz |
Response Time (GTG) (ms) | 5 ms | 4 ms |
Brightness (nits) | 350 nits | 300 nits |
Contrast Ratio | 1000 | 3000 |
Color Gamut (sRGB %) (%) | 108 % | 99 % |
Ergonomics(1) | ||
Tilt Range (°) | 25 ° | 21 ° |
Audio(1) | ||
Built‑in Speakers | false | true |
Power & Warranty(2) | ||
Typical Power Consumption (W) | 22 W | 32 W |
Warranty Period (years) | 3 years | 1 years |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the U2790VQ a strong contender for office and content-creation environments, highlighting its color accuracy, ergonomic design and comprehensive connectivity while noting the lack of adaptive sync and a 60 Hz panel for serious gaming.
Everyday users consistently commend the monitor's sharp 4K display, frameless aesthetics and built-in power supply, while recurring concerns focus on potential burn-in, occasional dead pixels and limited stand adjustability.

Professional reviewers praise the S3225QS for delivering premium-class 4K resolution at a 120 Hz refresh rate, solid color performance and an ergonomic stand, while noting the VA panel's typical drawbacks and the absence of USB-C.
Everyday users rate the monitor highly, highlighting the jump to 4K 120 Hz, sharp picture and good speakers, but mention a wobbly stand, missing USB ports and the VA panel's limited viewing angles.
“Great upgrade from 4K 60 Hz”

“Sharp and vibrant”

“Perfect for mixed use”


